Improved editing system

ABSTRACT

A system for recording and randomly selecting and reproducing audio-video information signals is provided with means for encoding audio and frame code information signals within video information signals.

United States Patent 1 Youngstrom et al.

[ June 19, 1973 [5 IMPROVED EDITING SYSTEM [75] Inventors: Jerry R. Youngstrom, Sunnyvale;

Wilfred K. Anderson, San Jose; Martin Wallace Fletcher, Palo Alto; Caljon H. Strobele, Los Altos Hills; Kenneth T. Taylor, Menlo Park, all of Calif.

[56] References Cited UNITED STATES PATENTS 3,446,9l4 5/1969 Hodge l78/5.6 3,493,674 2/1970 l-loughton 178/56 3,466,387 9/l969 Rout l78/5.6

3/1970 Suzuki et al. l78/5.6

Assignee: Memorex Corporation, Santa Clara,

Calif. Primary Exa minuJames W. Moffitt Filed: Feb. 1971 Att0mey-Limbach, Limbach & Sutton Appl. No.: 115,673 57 ABSTRACT A system for recording and randomly selecting and re- 173/65 SF, producing audio-video information signals is provided 173/55 with means for encoding audio and frame code inforvInt. CI. H04n 5/76 mation signals within video i f ti Signals Field of Search 178/5.6, 6.65 F, f 173/6 55 DD 65 A 11 Claims, 43 Drawing Figures FAR T EA I l MEANS 2 ELECTRONICS PICTURE I MEANS & SECOND 22 24 AUDIO I gHAg NE 30 f FIRST SECOND Hmg 52 MONITOR l MONITOR I s CONTROKD ADDRESSES l a ADDRESSING DISPLAY comm.v

L {S%Lfi"' EDITOR am am 32 PAIENIEBJ 9 W gs @2202 as 03 cz wos I 2 555 w 82 8 as 21222: IIII 8 II III as? 823 1a 5&3 m: m i a gam as I as n 528 JOEZS I 5:2 m M 3 12% M50323: 2 2 rI llll I Ll I l .I I so TI +J O52 5&8 I 2: til I C52 052 I I I I I l I I a 5 g I IIIIIII I L I I i I l I 55% 052 @222 E2 5328 M I 12% H 2 @Q 0% III g: I I25 @255 9 y E? 312 N; I I rAI I $2.22 8% s II| hfimo COED fi .115 mm a EM: 22 Em: 7 zomww wm PATENTED 9 3. 740.463

ml 0R9? 32 400 SURFACE FIG. 3A

SURFACERZ FR MEI FR ME2 FRAMES FRAlfl l ENCODED IFIELDI FIELDZVFIELDI FIELDZVFIELDI FIELDZWFIELDI FIELD? VIDEO FIGSB FIG.3C W

SKIPFIELD 2 RECORDING F2 DELAY F2 F2 DELAY Z 1 A B R A B R K REVOLUTION OF DISC SECOND SURFACE PACK (FIRST SURFACE) FIRST CYLINDER H6 30 A (FIRST CYLINDER) m SKIPFRAME 4 d; W RECORDING R DELAY B REVOLUTION l-g -k g -l PAIENIBB H 3.740.463

MEI 050? 32 FIG.4APH6 W /3 0mm F2 F22 F2 F22 HEAD A B A B SKIPFIELD CHANNEL l 4B SKIPHELD SKlPFlELD/SKIPFRAME CHANNEL RECORDER 404 SIKIPFIELD FIG. 4C CHANNELI SKIPFIELD L RECORDB PLAYB PLAY BA 'mE CHANNEL2 (FOR ONE RF OUT {A OUT :AOUT :8 OUT :BOUT

SURFACE) DE-MOD DELAYEDDELAYED DELAYED 35 BECORDAPLAYA :PLAYA CHANNELZ} RECORDB: B PLAY B :PLAY B PLAYB %PLAYB{ PLAY RF OUT A OUTEAOUT .AOUT A our B our B our BouT Bour DE-MOD DELAYED DE-MOD DELAYED DELAYED DELAYED PAIENTED JIIIII 9373 3. 740.463

am am 32 CLOCKIFIELDS) I 2 I 2 I 2 I 2 I 2 I 2 I 2 I 2 %g5%g ,,g j'$gg R/E R/O R/E R/O R/E R/O R/ E R/ E INPUT Al A2 BII D2 I II I la BI B 2 I I I I2 DI 32 III D2 I 3I Dz CHAN! (AUDIO) RQTP T RQTP RQTP RQTF ROTIID RQTP EII8EI XBII E H E H THRU sw T l T T l T RFiOUTPUT TO PACK B s A s A I3 8 A I3 PACK POSITION A B A B A B A- B A B A B A B A B SYMBOLS R/E- RECORD EVEN COMMAND H6. 6 R/O- RECORD ODD COMMAND R/O R/E SKIPFIELD RECORD MODE PACK POSITION A B A B A B A B A B A B A B A B CLOCK (FIELDS) I 2 I 2 I 2 I 2 I 2 I 2 I 2 I 2 PLAY COMMANDS P P P P P P P P EZWSS If s P Il s P I| s P F s SKIPFIELD CHAI\I.I RPP E RP-P E RP'P E R- P SKIPFIELD CHAN.2 II? P P E F? P P E I? P P E THUR SW 1; l I; l I; l REOUTPUTTODEMODGOB B A A B B A A B B A A B B I 1 IIII I-IIII FIG] S-SEEK PERMITTED SKIPFIELD 22 IEIIIIIII IR- PACK POSITION UNITS 7 PACK POSITION AT FRAMESYNCTIME 40IEEE l sg sg UNITS D Age/RISE $I I I'\ (31 0 S IS 'BAcK PORCH Pmmium 3.140.463

vsum 1m 32 v INPM'ISTIEQO IVI CO U N5 AY CORD/ODD ECORD/ Fl OR#2 NABLE SEL.

TIMING FROM TIMING PULSES 440 2 CRI FIG. IOA

PAIENIEEJUN 1 91973 3 740,46 3

SIIEEI 120E 32 OUTPUTS T0 SKIPFIELD SWITCHES R AR.

B IO M R I 5V p Al? I APZTP RECORD P SKIPFIELD CONTROL 49 FIG. IO B 

1. Apparatus for recording and reproducing audio-video information signals comprising: a. means for encoding audio information signals within video information signals and in synchronization with said corresponding video information signals to thereby form a composite audio-video information signal; b. recording means for storing said composite audio-video information signal; c. means for randomly accessing individual segments of said composite audio-video information signals; and d. means for synchronously reproducing said audio and said video information signals, said reproducing means including means for extracting said audio information signals from said segments of said composite audio-video signals.
 2. Apparatus as in claim 1 wherein the video information signals are presented as a series of video frames comprising video fields and wherein unique code signals are encoded within each frame of said composite audio-video signals, said accessing means selecting desired segments by addressing the coded frames within said segment.
 3. Apparatus as in claim 2 wherein each video frame is characterized by a series of scan lines, a plurality of horizontal sync intervals, and vertical sync associated with said video frames and wherein said audio information signals and said frame code signals are encoded in said sync intervals thereof.
 4. Apparatus as in claim 3 wherein said audio information signals are encoded within said plurality of horizontal sync intervals and said frame code signals are encoded within said vertical sync interval.
 5. Apparatus as in claim 4 wherein audio information signals corresponding to more than one video field is encoded within said horizontal sync intervals.
 6. Apparatus as in claim 3 where audio information signals corresponding to more than one video field is encoded within said sync intervals.
 7. Apparatus as in claim 4 wherein audio information signals corresponding to more than one video frame is encoded within said horizontal sync intervals.
 8. Apparatus as in claim 3 wherein audio information signals corresponding to more than one video frame is encoded within said sync intervals.
 9. Apparatus as in claim 1 wherein said recording means comprises magnetic recording means.
 10. Apparatus as in claim 8 where said magnetic recording means comprises a plurality of magnetic discs.
 11. Apparatus as in claim 1 wherein said audio information signals comprise audio samples, and including valid H means for sampling and repeating audio samples if the system timing is correct. 